Data Blog

DBCA causes ORA-27104

DBCA fails with error message ORA-27104 on Linux[ 2017-09-03 20:49:06.137 CEST ] Creating and starting Oracle instanceDBCA_PROGRESS : 1%DBCA_PROGRESS : 2%[ 2017-09-03 20:49:07.366 CEST ] ORA-27104: system-defined limits for shared memory was misconfiguredDBCA_PROGRESS...

DB2 is now Db2

Some IBM name changes for DB2: Old name New name DB2 for LUW Db2 DB2 for z/OS Db2 for z/OS DB2 for z/OS Db2 for i DB2 on Cloud Db2 Hosted dashDB for Transactions Db2 on Cloud dashDB for Analytics Db2 Warehouse on...

SQL Tuning – filtered rows percentage method

SQL Tuning – filtered rows percentage method

Kevin Meade is the author and publisher of his own book "Oracle SQL Performance Tuning and Optimization" - It's all about the cardinalities". His book is rather unknown as there is not much marketing about it. Unfortunately. Because it is a great book for the SQL...